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Related Manuals for Briggs & Stratton Racing Animal Series
Summary of Contents for Briggs & Stratton Racing Animal Series
- Page 1 Briggs & Stratton Racing Carburetor Tips and Reference Guide Animal, 206, and M-series PZ-22...
- Page 2 PZ CARBURETOR PERFORMANCE TUNING AND MAINTENANCE All information provided is intended for use as a guideline for basic operation, tuning, and maintenance of the PZ slide valve carburetor used on your Briggs & Stratton® race engine. Contents: TUNING Idle and Low Speed Midrange/Part Throttle High Speed/Full Throttle TUNING TIPS...
- Page 3 TUNING Animal, 206, and M-series Rich and Lean: An internal combustion engine needs a specific ratio or mixture of air and fuel for best performance. This mixture is delivered by the carburetor. In the following discussion numerous references will be made to the air and fuel mixture (air/fuel ratio) being rich or lean.
- Page 4 Idle and Low Speed mixture screw will usually result in the Animal, 206, and M-series highest rpm with the throttle closed. As Parts involved: the amount of fuel is varied the engine • Idle Speed Screw rpm will also vary. With throttle closed •...
- Page 5 Midrange/Part Throttle the main nozzle and allow more fuel into the air stream. To lean part throttle Part involved: operation move the clip to the next • Jet Needle higher position. The notch at the top • Main Nozzle (Needle Jet) of the needle would be considered the •...
- Page 6 TUNING TIPS seems erratic, check for loose on acceleration from closed throttle. carburetor and manifold mounting A slightly rich idle mixture may help Gasoline is the typical fuel used for bolts or leaking gaskets or seals. This acceleration. internal combustion engines. In some can cause a vacuum leak and lean Moving the position of the Jet Needle racing applications methanol alcohol is...
- Page 7 MAINTENANCE carburetor. Air filters should fit the is necessary a toothpick will work carburetor properly and be kept clean. for clearing any holes such as jets. Draining carburetor Remove the Inlet Needle and use a Bowl gasket The carburetor should be “purged” Q-tip to clean the inside of the inlet When reinstalling the float bowl you of alcohol at the end of every day of seat.
- Page 8 Briggsracing.com facebook.com/Briggsracing Join the Conversation – Post questions, talk to other racers and dealers at www.BriggsRacing.com Briggs&sTraTTOn POsT OffICe bOx 702 CORPORATION MIlwAukee, wI 53201 usA 414 259 5333 ©2012 Briggs & Stratton Corporation MS10429 (REV. -)